Feed-valve for lubricators.



Patented Aug. 2l, [90.0.

No. 656,6I6.

s. s'. WEBSTER.

FEED VALVE FOB LUBRICATRS.

(Application led Apr. 13, 1900.)

(No Nudel.)

@Mmm

Uivrrnn STATES PATENT OFFICE.

GEORGE S. WEBSTER, OF MINNEAPOLIS, MINNESOTA.

FEED-VALVE FOR LUBRICATORS.

` SPECIFICATION forming part of Letters Patent No. 656,616, dated August 21, 1900 Application, led April 13, 1900.` Serial No. 12,700. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE S. WEBSTER, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Feed-Valves for Lu'- bricators 3 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates particularly to cylin# der-lubricators for locomotives, and has for its object to provide an improvement in the valve mechanism for giving a graduated feed of the oil.

To theabove ends my invention consists of the novel devices vand combinations of devices hereinafter described, and defined in the claim.

This invention, while especially designed for use in connection with cylinder-lubricators for locomotives, is capable of general use wherever a graduated feed of oil or other liquid is desired.

In the cylinder-lubricators of locomotives the feed-valve is required to be set in certain determined positions, so as to give a certain number of drops per minute, depending largely upon the Work which is being per formed. ,All the standard lubricators are provided with feed-valves by means of which this may be accomplished; but it is incident to such construction that in order to close the oil-passage and stop the feed of the oil tem porarily, as should be done when the engine is standing still, the determined position for the feed-valve to produce the desired number of drops to the minute is lost. IIence it is that engineers in making short stops usually, and in making long ones frequently, leave the feed-valves open, and thus waste oil. By my invention, which in its preferred form is illustrated in the accompanying drawings, I make it possible to set the feed-valve for any desired number of drops per minute, to close the valve temporarily, and upon opening the valve to its set limit to reestablish the previously-determined feed of the oil.

In the drawings like characte-rs'indicate like parts throughout both views.

Figure l is a View, partly in side elevation and partly in vertical section, showing a por-- tion of a lubricator such as used to feed the oil to locomotive-cylinders; and Fig. 2 is a similar view to Fig. l, but showing the parts in different positions.

The letter a indicates the valve=seat por4 tion of the lubricator, the other well-known portions of the lubricator being omitted.`

The oil is fed through lateral perforations ct into a small chamber a2, from which an oilpassage d3 leads upward to the sight-tube. (Not shown.)

Working with screw-threaded engagement in the lower end of the valve-seat casting a is a sleeve b, having at its lower end a handpiece b'. The feed-valve proper,f, opens and closes the lower end of the oil-passage a, and its stem f has screw-threaded engagement at f2 with the upper end of the sleeve b, the said stem extending axially` through said sleeve b and having at its lower end a handpiece f3. As shown, the lower end of the casting or body a. is provided with a smiling-box g, which forms a tight joint with the sleeve Z1, and the lower end of the sleeve b is provided with a stuffing-box g', which forms a tight joint with the stem f. The sleeve b and the stem f in eifect constitute a divided stem for the valve f.

The operation of the device is as follows: The valve fis by its stem j" screwed downward against the upper end of the sleeve Y), which acts as a stop therefor. Then by manipulating the handpiece b' the sleeve b, stem f', and valvef are turned together as an entirety, and by such adjustment the valve f may be set more or less open, so as to give the desired tlow of oil or number of drops per minute thereof. In this construction it will of course be understood that the oil is delivered through the passage d under suiicient pressure to cause the same to flow upward through the oil-passage a3. In Fig. l the valve f is shown as screwed against the end .of the sleeve as above described, but is shown as opened wider than would be required. To close the passage a3 and stop the feed of the oil, it is only necessary to turn the valvestem f and handpiece f3, without moving the sleeve b, until the valve j" has been forced into contact with the lower extremity of the feed-passage a3, as shown in Fig. 2.

ICO

When it is desired to again open the feedpassage a3, the valvef may, by means of the stem f and handpiece f3, be screwed back into its extreme open position, as limited by its enga-gement with the adjacent end of the sleeve b. The valve when thus opened will be moved to its properly-adjusted position and the regulated iioW of oil will be again permitted. At the same time the readj ustment of the Valve may be at any time easily accomplished by turning the sleeve b.

It is evident that with this device the engineer will find no excuse for not cutting o the feed of the oil when the engine comes to a standstill. It will be'understood, also, that the device above described is capable of considerable modification Within the scope of my invention.

Vhat I claim, and desire to secure by Letters Patent of the United States, is as follows:

and which exterior or sleeve member acts as a stop to variably limit the opening move- Vment of said valve with respect to said feedv passage.

' In testimony whereof I aflix my signature in presence of two Witnesses.

GEORGE s. WEBSTER.

Vitnesses:

HARRY KILGoRE, F. D. MERCHANT. 

